Observation 179733: Parmotrema A. Massal.

When: 2013-01-12

Collection location: Edgebrook Golf Course, Chicago, Illinois, USA [Click for map]

Who: T. Nelson

No specimen available

Attached to the side of an oak.


Proposed Names

56% (1)
Recognized by sight

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= Observer’s choice
= Current consensus


Add Comment
This looks too closely attached for P. hypotropum
By: Jason Hollinger (jason)
2014-09-21 14:53:27 PDT (-0700)

It looks brown underneath (near the margin at least, the only part we can see). I’d guess P. chinense instead… I’m looking at checklists for the region and it’s not clear. P. hypotropum is, indeed, the most common thing in Ohio by far. In Wisconsin none are especially common,except maybe the reticulate P. reticulatum (but this is not reticulate). In the Ozarks, there are several options, including P. margaritatum, but none are considered common. So maybe zaca has it right, and this is just an unusually closely attached P. hypotropum.

If the underside …
By: zaca
2014-09-21 12:37:21 PDT (-0700)

is whitish, then it should be either P. hypoleucinum or P. hypotropum.